140134470 has 64 divisors (see below), whose sum is σ = 388233216. Its totient is φ = 31708800.

The previous prime is 140134447. The next prime is 140134529. The reversal of 140134470 is 74431041.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140134470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17907 + ... + 24513.

It is an arithmetic number, because the mean of its divisors is an integer number (6066144).

Almost surely, 2^140134470 is an apocalyptic number.

140134470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140134470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194116608).

140134470 is an abundant number, since it is smaller than the sum of its proper divisors (248098746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140134470 is a wasteful number, since it uses less digits than its factorization.

140134470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 140134470 is about 11837.8405970008. The cubic root of 140134470 is about 519.4156033398.

The spelling of 140134470 in words is "one hundred forty million, one hundred thirty-four thousand, four hundred seventy".